Investigate ways to improve the efficiency and sustainability of organizational and technical systems for small and medium-sized businesses in the construction, through a systematic approach to organizing the process of functioning.
Keywords: small business, small businesses, construction, system approach, business process, S-shaped development.

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  The article presents the rationale of using the method of pulsed laser exposure during the operation of coronary stent delivery system components welding. The author discussed the parameters of pulsed laser radiation, affecting to the quality of welding joint. In view of these parameters performed modeling of pulsed laser welding.

Keywords: stent delivery system, coronary stent, pulsed laser welding, laser welding of polymers

Statement of the problem. Preparation of high-strength foam concrete in construction allows for energy and resource conservation. Water covers more than 50% of their dense component and on its properties depend strongly on structural properties of foam concrete, is not fully explored.
Results. The effect of mixing water of low temperature on the structure and properties of constructive penofibrobetonov. Recommendations on the account in the calculation of reinforced concrete elements elevated structural properties and deformation diagrams penofibrobetonov by mixing water setback.
Conclusions. Using low temperature mixing water improves the structure, increases the strength, deformability and elastic modulus, as well as changes of the deformation diagram fibropenobetonov.
Keywords: fibropenobetona, foam, water temperature mixing, macroporosity, economic efficiency, technical and economic assessment.

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The results of studies of the effect of complex polyfunctional additives consisting of superplasticizer stabilizer and redispersible powder on strength and shrinkage of cement paste.
Multiplicative model is developed, with which is possible to regulate the formation and development of deformation strength compositions for various compositions of dry building mixes. Dependencies describing the influence of the complex polymer additives on the formation and development of the deformation strength of cement stone. The functions of the coefficient values ​​depending on the dosage used additives.
Keywords: dry mortar, cement stone, additives, modifiers, superplasticizer additive stabilizing effect, redispersible polymer powders, strength, shrinkage deformation.

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The influence of non-multi - repeated loads on columns of keramzito fibrobetona. Comparative results of tests Depends on the flexibility of columns, the eccentricity of the external force, the coefficient of reinforcement options and loading. The obtained results suggest that repeated loading nemnogokratno increase the carrying capacity of columns, compared with a single loading. This is especially effective for columns with low flexibility and small eccentricities external force.
Keywords: stand, keramzitofibrozhelezobeton, bearing capacity, nemnogokratno repeated loading, mixed reinforcement flexibility.

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